I have filed a case with 4D. I'm posting this message to make programmers aware 
of this issue. If you find that I'm mistaken, please let me know.

A Query within a transaction is returning incorrect results. To demonstrate 
create a new database with one table, add a date field to the table named 
"Date".
Create and execute a method with the code below:

$dDate:=Current date
START TRANSACTION
CREATE RECORD([Table_1])
[Table_1]Date:=$dDate
SAVE RECORD([Table_1])
QUERY([Table_1];[Table_1]Date<$dDate;*)
QUERY([Table_1]; & ;[Table_1]Date>Add to date($dDate;-1;0;0))
ALERT(String(Records in selection([Table_1]))+"\r\rSould be zero")
CANCEL TRANSACTION

The query should return zero records because the records date is = $dDate not < 
$dDate. However the query shows 1 record found.

A bit of testing shows this problem exists in v15.3 as well as v16.0 (other 
versions of 4D not tested) The query also seems to work if there is no 
transaction. The query also seems to work if it is a single level query (just 
date<$dDate results in zero records)

I tested only on windows 7 and windows server 2008 R2.

Neil












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